A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5990-01-390-2177
NSN 6610-01-625-2926
NSN 5930-01-197-5364
NSN 6150-01-103-8028
NSN 5855-01-136-9532
NSN 6105-00-541-8472
NSN 5930-00-501-8871
NSN 6110-00-725-9740
NSN 6645-01-426-3378
NSN 5950-01-181-0071
NSN 6620-00-963-1319
NSN 6240-00-617-1818